diff options
| author | Loic Poulain <loic.poulain@linaro.org> | 2021-08-02 10:42:46 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-05 14:28:14 +0200 |
| commit | 0092a1e3f7636ff4e202a41b0320690699247e22 (patch) | |
| tree | f88be01bcfec7aa437828ba81afb1e799f84fd95 /include/linux/mhi.h | |
| parent | fec29bf04994b478a43a7e60e6dd5ac1f7cb53ae (diff) | |
bus: mhi: Add inbound buffers allocation flag
Currently, the MHI controller driver defines which channels should
have their inbound buffers allocated and queued. But ideally, this is
something that should be decided by the MHI device driver instead,
which actually deals with that buffers.
Add a flag parameter to mhi_prepare_for_transfer allowing to specify
if buffers have to be allocated and queued by the MHI stack.
Keep auto_queue flag for now, but should be removed at some point.
Link: https://lore.kernel.org/r/1624566520-20406-1-git-send-email-loic.poulain@linaro.org
Tested-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Hemant Kumar <hemantk@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210802051255.5771-2-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/mhi.h')
| -rw-r--r-- | include/linux/mhi.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/mhi.h b/include/linux/mhi.h index 944aa3aa3035..5e08468854db 100644 --- a/include/linux/mhi.h +++ b/include/linux/mhi.h @@ -719,8 +719,13 @@ void mhi_device_put(struct mhi_device *mhi_dev); * host and device execution environments match and * channels are in a DISABLED state. * @mhi_dev: Device associated with the channels + * @flags: MHI channel flags */ -int mhi_prepare_for_transfer(struct mhi_device *mhi_dev); +int mhi_prepare_for_transfer(struct mhi_device *mhi_dev, + unsigned int flags); + +/* Automatically allocate and queue inbound buffers */ +#define MHI_CH_INBOUND_ALLOC_BUFS BIT(0) /** * mhi_unprepare_from_transfer - Reset UL and DL channels for data transfer. |